Home / 68,636.16-102,808.44-39,038.76

Finding the Fourth Proportional to 68,636.16, 102,808.44 and 39,038.76

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Solution

The fourth proportional to 68,636.16, 102,808.44 and 39,038.76 is: 58,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,636.16 : 102,808.44 = 39,038.76 : x
  2. Step 2: Convert to fraction form
    68,636.16/102,808.44 = 39,038.76/x
  3. Step 3: Cross multiply
    68,636.16x = 102,808.44 × 39,038.76
  4. Step 4: Simplify right side
    68,636.16x = 4,013,514,015.13
  5. Step 5: Solve for x
    x = 4,013,514,015.13/68,636.16
  6. Step 6: Final answer
    x = 58,475.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.